Copy Blogroll category as primary for another:

Copy Blogroll category as primary for another:
I have two hosted blogs, both with prophoto4 themes.

One is a general photography website and the other is a wedding photography
site.
On the gen. photo site I add all photos that I take (weddings, every day, pet photography, etc)… on the wedding blog – only wedding.

I’d like to have my wedding website purely wedding photography.
Rather than uploading the wedding photos to each site, it would be easiest for
me to blogroll the category “wedding” from my primary site and use that as my
main blogroll for the wedding site (I want to post once to the primary/gen. photography blog and then have the wedding blog use only the category “wedding” from the primary blog as it’s blogroll source)

Is this possible and, if so, how?